consulate in benghazi that killed four americans including ambassador christopher stevens. yesterday libyan security forces say they raided several militia sites in tripoli. >>> mitt romney sounds like he's ready for a reboot and fight. the gop nominee says he'll get more aggressive in the next six weeks of the race. he claims president obama has been putting words in his mouth and he plans to put a stop to it. >> i think that the president's campaign has focused its advertising in many cases on very inaccurate r portrayals of my positions. they've been very aggressive in their attacks both on a personal basis, on a policy basis. >> meanwhile the president says one of the biggest disapointments of his first four years in office is his failure to change the political climate in washington. >> i think that, you know, as president i bear responsibility for everything. to some degree. and one of the things i've realized over the last two years is that that only happens if i'm enlisting the american people much more aggressively than i did the first two years. >> the first presi